This is not true at all and I speak from a lot of experience. We have driven thousands of miles with out Co-Motion tandem on a rear 4-bike receiver mount rack. With both wheels still on and the handlebars turned 90 degrees only, the bike is within the width of the mirrors on either side of our Odyssey minivan. It does stick out, but definitely well within the traffic lane width and as long as you are not scraping your mirrors on other cars or walls, your tandem is perfectly safe back there. I really think a rear rack is the best solution as it seems impractical to me to go through all of the hassles of fitting a tandem into a small vehicle then not having room for your stoker to ride with you (kind of defeats the purpose). My only recommendation is that you use a receiver mounted rear rack that is sturdy enough for 4 bikes to handle the extra weight and inertia of a long tandem. We have in fact driven more than 500 miles with 2 tandems, a single bike and a TAB on the rack and 6 people to ride them and our luggage comfortable inside the single minivan. With a good receiver mounted hitch almost any vehicle is 'ideal' for a tandem and your passengers and luggage are covered too.